There was so serious a matter that I had no choice but _________ the police.

Aren’t you ____ that Wang Kai got full marks in the English examination? —- Yes, it is really _______.

With consumers searching _______ ways to cut daily expenses, officials from the National Bureau of Statistics’ economic monitoring center say there’s no need _______.

counted 225flowering plants, ______ he collected and brought home 193

Once or twice he has had difficulty making decision on his own, but ______ he is an independent man[ ]